Patents by Inventor Koichi Ooya

Koichi Ooya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Communication apparatus and communication method
    Patent number: 9467180
    Abstract: Disclosed is a communication apparatus including an amplification part and a transient characteristics control part. The amplification part is configured to amplify a signal level of a received signal. The transient characteristics control part is configured to control transient characteristics of the amplification part.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: October 11, 2016
    Assignee: SONY CORPORATION
    Inventor: Koichi Ooya
  • COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    Publication number: 20140112421
    Abstract: Disclosed is a communication apparatus including an amplification part and a transient characteristics control part. The amplification part is configured to amplify a signal level of a received signal. The transient characteristics control part is configured to control transient characteristics of the amplification part.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 24, 2014
    Applicant: Sony Corporation
    Inventor: Koichi Ooya
  • Variable-gain amplifier
    Patent number: 7323937
    Abstract: A variable-gain amplifier has distortion characteristics (IIP3) improved when the gain is attenuated without impairing characteristics with respect to a gain PG and a noise figure NF when the gain is maximum. The variable-gain amplifier has a plurality of parallel-connected dual-gate FETs having first FETs (6), (8) having gates for being supplied with an input signal and second FETs (7), (9) connected in cascade to the first FETs (6), (8), respectively. Gate control voltages (Vcon1, Vcon2) can separately be applied to the second FETs (7), (9), respectively, from voltage control means.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: January 29, 2008
    Assignee: Sony Corporation
    Inventors: Koichi Ooya, Tsuyoshi Sakuma
  • Variable-gain amplifier
    Publication number: 20060033575
    Abstract: A variable-gain amplifier has distortion characteristics (IIP3) improved when the gain is attenuated without impairing characteristics with respect to a gain PG and a noise figure NF when the gain is maximum. The variable-gain amplifier has a plurality of parallel-connected dual-gate FETs having first FETs (6), (8) having gates for being supplied with an input signal and second FETs (7), (9) connected in cascade to the first FETs (6), (8), respectively. Gate control voltages (Vcon1, Vcon2) can separately be applied to the second FETs (7), (9), respectively, from voltage control means.
    Type: Application
    Filed: September 10, 2003
    Publication date: February 16, 2006
    Applicant: Sony Corporation
    Inventors: Koichi Ooya, Tsuyoshi Sakuma